POMC-derived 39-AA peptide hormone

ACTH 1-39.

A 39-residue peptide hormone derived from the POMC precursor. The canonical reference standard for melanocortin (MC2R) and HPA-axis research.

Key Information

CompoundACTH 1-39
Research categoryOther Research
Available sizes5mg
PricingFrom £30
FormatLyophilised powder in sealed vial
Purity>99% by HPLC (Janoshik Analytical, batch-verified)
Intended useIn-vitro laboratory research only. Not for human consumption.

Chemical & Reference Data

Reference data drawn from public databases (PubChem, UniProt) and peer-reviewed literature. For research and laboratory characterisation only.

Compound classSynthetic 39-amino-acid corticotropin (ACTH 1-39)
Molecular formulaC207H308N56O58S
Molecular weight4541.1 g/mol
CAS Registry Number9002-60-2
PubChem CID16129617
Number of residues39
Amino acid sequenceSYSMEHFRWGKPVGKKRRPVKVYPNGAEDESAEAFPLEF
Receptor / mechanismMC2R (ACTH receptor) agonist.
Reported half-lifeReported ~10–20 minutes in human serum.
SolubilityLyophilised powder reconstitutes in bacteriostatic water for laboratory use.
Storage (lyophilised)Stable at 2–8 °C lyophilised for 24+ months.
Storage (reconstituted)Reconstituted: store at 2–8 °C, use within 14 days.
Clinical / regulatory statusApproved historically for research-relevant indications.

Research Profile

  • 39-amino-acid polypeptide
  • MC2R agonist
  • Adrenal-cortex signalling research
  • Third-party purity tested
  • Research use only

ACTH 1-39 (Adrenocorticotropic Hormone) is a 39-amino-acid polypeptide characterised in the biochemical literature as the principal agonist at the melanocortin-2 receptor (MC2R) on the adrenal cortex. Supplied as lyophilised powder for in-vitro research use only.

The above describes how this compound is characterised in the published peer-reviewed literature. It is not a claim about effects in humans.

Laboratory Handling

ACTH 1-39 is supplied as a lyophilised (freeze-dried) powder in a sealed glass vial. For laboratory reconstitution, add the desired volume of diluent (typically bacteriostatic water) slowly down the side wall of the vial. Swirl gently until fully dissolved - do not vortex or shake. Store reconstituted solutions at 2–8 °C and use within 4–6 weeks.

Use our Reconstitution Volume Calculator to compute the resulting mg/ml concentration.

StateTemperatureShelf life
Lyophilised2–8 °C or −20 °CUp to 24 months
Reconstituted2–8 °C4–6 weeks typical

Purity & Verification

Every batch of ACTH 1-39 we supply is independently HPLC-verified by Janoshik Analytical. Where a Janoshik report has been issued for the current batch it is supplied with the order and carries a unique verification key that can be authenticated against Janoshik's records. Reported purity is consistently above 99%.

Related Compounds

Researchers working with ACTH 1-39 often work alongside the following compounds in the preclinical literature:

  • Semax - Neuropeptide Research